PubMatic Inc is a tech firm based in Redwood City, California, specializing in real-time programmatic advertising. It offers a cloud infrastructure platform that facilitates advertising transactions for digital content creators and advertisers globally. PubMatic provides a variety of solutions such as OpenWrap for header bidding, OpenWrap OTT for unified bidding in over-the-top content, and Identity Hub for ID management among others. Its platform supports multiple ad formats across different devices, aiming to streamline the digital advertising process.